Honeywell S9240F1004, Руководство по установке, Страница: 7 / 28

S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
7 69-2088—01
SETTINGS AND ADJUSTMENTS
Jumpers
Three jumpers are located on the S9240 board. The jumpers
are all ON (uncut) from the factory. To change any jumper, first
disconnect the power, then cut the desired jumper.
Fig. 3. Jumper locations.
DIP Switches
There are three DIP switch blocks on the S9240F (see Fig. 4):
• S1 – see “DIP Switch S1 Settings”
• S2 – see “DIP Switch S2 Settings – Cooling Airflow” on
page 9.
• S3 – see “DIP Switch S3 Settings – Heating Airflow” on
page 10.
Fig. 4. DIP Switch locations (S1, S2, and S3).
DIP Switch S1 Settings
Five parameters may be set with this 7-position DIP switch.
Refer to Fig. 4 for location of DIP switch S1.
The default factory settings (all OFF) are shown in Fig. 5 and
indicated in Bold in Table 5 on page 8.
To change any setting, first disconnect the power, then set
SW1 through SW7 according to Table 5 on page 8.
.
Fig. 5. DIP Switch S1 - shown with factory default
settings; all OFF.
SW1: STAGE SELECTION
The stage selection is factory-set (OFF) to a 2-stage
thermostat with the 2nd and 3rd stage On Delays disabled.
The ON position configures the IFC for a single stage
thermostat with the 2nd and 3rd stage On Delays enabled.
NOTE: Selection of the single stage position (ON) allows
three stage operation with a single stage thermostat.
SW2: SEQUENCE
The sequence is factory-set (OFF) to respond to a thermostat
as dictated by the SW1 selection.
The ON position configures the IFC for the Lennox modulating
firing state sequence with 2-stage thermostat.
NOTE: SW2 position is ignored if SW1 is ON.
SW3: 2ND STAGE ON DELAY
The On Delay timing applies to systems configured only with
single stage thermostats. It is the length of time operating in
normal low fire mode before switching to high fire mode. The
timing is factory-set (OFF) to 7 minutes.
The ON position configures the 2nd stage On Delay for 12
minutes.
NOTE: SW3 position is ignored if SW1 is OFF.
SW4-5: HEAT FAN OFF DELAY
The Heat Fan Off Delay is the period between the loss of
supervised main burner flame after the call for heat has ended
and the deactivation of the blower motor at the low heat
speed. The timing is factory-set (all OFF) to 90 seconds. See
Table 5 on page 8 for other timing settings.
SW6-7: FAN SPEED – THERMOSTAT “G”
The fan speed is factory-set (all OFF) to Medium-low. See
Table 5 on page 8 for other speed settings.
Table 4. Jumper Conditions - Defaults in Bold.
Description
Jumper
W915 W951 W914
Single stage compressor Uncut
2-stage compressor Cut
Disable compressor heating Uncut
Enable compressor heating Cut
Disable Harmony III and
dehumidifying operation
Uncut
Enable Harmony III and
dehumidifying operation
Cut
M28149
W915 - 2 STAGE COMPR W914 - DEHUM/HARMONY
W951 - HEAT PUMP
M28150
S2 S3 S1
DIP SWITCH S1
M28151
HEAT FAN OFF DELAY
2ND STAGE ON DELAY
SINGLE OR 2-STAGE THERMOSTAT
SELECTION
ON
12
4
357
6
FAN SPEED - THERMOSTAT “G”
CONVENTIONAL 2-STAGE OR
LENNOX MODULATING SEQUENCE